-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (MingW32)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=06T4
-----END PGP SIGNATURE-----
That signature is from John K's GPG key from back in 2013.
It looks like he has been AFK for a while, otherwise I could ask him who he sent that message to